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[REBOL] Re: Mapping series

From: greggirwin:mindspring at: 8-Mar-2006 13:47

Hi Jeff, JM> Thanks, I'll take a closer look at that one when I get a moment. Along the JM> same lines, has anyone come up with a version of "gensym" that can be used? JM> For example, using VID, I may want to dynamically create controls that JM> access themselves. I currently don't know of a way to do this without JM> generating a symbol to use. Here's a brief example of what I mean: gensym: func [/with 'word /reset /local count] [ count: [0] count/1: add 1 either reset [0] [count/1] to word! join any [word 'g] count/1 ] Now, if you're talking about actions in faces, that's easy, because you can just use face/<facet> in the action block. i.e. FACE in the action block refers to the face that the action is attached to. dyn-btn: does [ join [] ['button "foo" [face/text: "bar"]] ] view layout dyn-btn BTW, the above function shows the "persistent" quality of series values in functions. In this case, it's leveraged so an enclosing object isn't needed; sometimes it can bite you though, so you want to use COPY most of the time when declaring local series in functions. -- Gregg